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Cost-effective single crystal multi-stake actuator and method of manufacture

一种致动器、单晶的技术，应用在压电/电致伸缩器件的制造/组装、压电器件/电致伸缩器件、压电/电致伸缩/磁致伸缩器件等方向，能够解决单晶环及单晶管异向、高生产成本等问题

Active Publication Date: 2014-11-05
MICROFINE MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0021] The present invention relates to a series of multi-pile axial actuators with various configurations, which solve the problems related to the anisotropic characteristics of single crystal rings and single crystal tubes and their high production costs, while maintaining high axial displacement

Method used

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  • Cost-effective single crystal multi-stake actuator and method of manufacture
  • Cost-effective single crystal multi-stake actuator and method of manufacture
  • Cost-effective single crystal multi-stake actuator and method of manufacture

Examples

Experimental program
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Effect test

Embodiment Construction

[0029] figure 1 A preferred embodiment of the invention is shown. Shown here is a multi-pile actuator with a central bore consisting of multiple longitudinal (d 33 ) or horizontal (d 31 or d 32 ) modal piezoelectric single crystal active elements, which are bonded together by epoxy resin by means of shaped edge reinforcements and top and bottom gasket reinforcements. Leads connected to the electrode faces (not shown in this and other figures) of the single crystal active element are provided for actuation purposes. figure 1 A multi-stake actuator is shown, where the stakes are the same piezoelectric single crystal active element with a suitable composition and cutting disc (1). The monocrystalline elements are bonded by epoxy to the desired configuration by means of shaped edge stiffeners (2) and bonded at both ends to shaped gasket stiffeners (4). Leads are bonded to the electrode faces of the crystal to complete the device (not shown in this and other figures). The bol...

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PUM

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Abstract

This invention pertains to piezoelectric actuators made of single crystal active elements which not only exhibit uniform and superior displacement in the axial direction but also of lower cost to produce than full single crystal ring or tube actuators. Said multi-stake actuator is made up of multiple longitudinal (d33) or transverse (d3i or d32) mode piezoelectric single crystal active elements, bonded together by epoxy with the aid of shaped edge- and top and bottom washer-stiffeners which are configured to suit various application needs.

Description

technical field [0001] The present invention relates to a cost-effective single crystal multi-stake actuator and manufacturing method. Background technique [0002] Vertical (d 33 ) modal stack actuator and lateral (d 31 ) modal tubular or cylindrical actuators are widely used piezoelectric actuators where high productivity is required. These actuators are suitable for isotropic materials such as lead zirconate titanate (Pb[Zr 1-x Ti x ]O 3 or PZT) piezoelectric ceramics. [0003] To keep the applied voltage low, the longitudinal (d 33 ) Modal actuators are often made of shorter disc-like, ring-like or plate-like segments of thickness a few millimeters or less, which are bonded together by suitable means to form a stack. [0004] In recent years, lead zinc niobate-lead titanate (Pb[Zn 1 / 3 Nb 2 / 3 ]O 3 -PbTiO 3 or PZN-PT), lead magnesium niobate-lead titanate (Pb[Mg 1 / 3 Nb 2 / 3 ]O 3 -PbTiO 3 , PMN-PT) and magnesium lead niobate-lead zirconate titanate (PMN-PZT) s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L41/09H01L41/277B81B3/00H10N30/20H10N30/03H10N30/057H10N30/06H10N30/063H10N30/85H10N30/853H10N30/87
CPCH01L41/41B81B3/00H01L41/0986H01L41/25H01L41/1875H10N30/2046H10N30/206H10N30/03H10N30/20H10N30/063H10N30/204
Inventor 夏跃学H·N·吴D-H·林
Owner MICROFINE MATERIALS TECH
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